Certain 2-(5-hydrocarbyl or aryl-1-alkyl-pyrazol-3-yl)-nicotinic acid derivatives having herbicidal activity

US4752324A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rudolf Thomas · Haan, DE
• Peter Babczinski · Wuppertal, DE
• Hans-Joachim Santel · Leverkusen, DE
• Ludwig Eue
• Robert R. Schmidt · Cologne, DE

Key dates

• Filing date: Nov 5, 1986
• Grant date: Jun 21, 1988
• Expiry date: Nov 5, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D413/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidally active novel nicotinic acid derivatives of the formula ##STR1## in which X represents hydroxyl, alkoxy or the radical --OM, wherein PA1 M represents one equivalent of an alkali metal or alkaline earth metal ion, or an optionally substituted ammonium ion, and PA1 Het represents isoxazolyl, pyrimidinyl or pyrazolyl each substituted by a substituent selected from the group consisting of alkyl, alkenyl, alkoxy, alkylthio, alkylamino, hydroxyl, mercapto, amino, alkylcarbonyl which is optionally substituted by halogen or alkoxy; cycloalkyl and in each case optionally substituted phenyl or naphthyl, or optionally substituted condensed cycloalkylpyrazolyl.